Finding the Fourth Proportional to 20,526,433.19, 28,175,590.76 and 18,151,285.58
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Solution
The fourth proportional to 20,526,433.19, 28,175,590.76 and 18,151,285.58 is: 24,915,346.45
Step by Step Solution
- Step 1: Write the proportion equation
20,526,433.19 : 28,175,590.76 = 18,151,285.58 : x - Step 2: Convert to fraction form
20,526,433.19/28,175,590.76 = 18,151,285.58/x - Step 3: Cross multiply
20,526,433.19x = 28,175,590.76 × 18,151,285.58 - Step 4: Simplify right side
20,526,433.19x = 511,423,194,269,969.25 - Step 5: Solve for x
x = 511,423,194,269,969.25/20,526,433.19 - Step 6: Final answer
x = 24,915,346.45
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.